SIA0770: Desert Tortoise

Common Name:Desert Tortoise
Scientific Name:Gopherus agassizii
Photographer:Calvin J. Hamilton
Copyright:© 2004 Calvin J. Hamilton
Location:Red Rock Canyon, Nevada

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Turtles survived the mass extinction of dinosaurs and have thrived in their present form for approximately 150 million years. The Desert Tortoise is one of four species that have remained virtually unchanged since the Oligocene Epoch (27-37 million years ago).

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